On 19.10.2017 11:34, javed khan wrote: > Hello Lorenz, I knew I will not be able to explain my point. > > I have one class: Question (What is capital city of Germany) > Another class : Answer (Berlin) > and similar question/answers instances. Are you still working on the quiz project? Have you seen that there is already related work? > > I want to show rdfs:comment of answers like Berlin,Madrid and it works > > So when I mentioned ?x rdfs:comment ?comment, the ?x contains Answers > like Berlin, Madrid > > After this query if I want to show the rdfs:abstract of Answers (Berlin > etc) from Dbpedia endpoint directly, is it possible? To repeat myself, the property rdfs:abstract does **not** exist! There is a DBpedia property called http://dbpedia.org/ontology/abstract
And why should it not be possible? Send the query with the correct URIs of the cities to the DBpedia SPARQL endpoint to get the abstracts. One comment, your URIs do **not** match the URIs of DBpedia! * you have http://dbpedia.org/resource#London. * the correct DBpedia URI would be http://dbpedia.org/resource/London > > The instances data could be the following in my ontology: > > I have one suggestion: Is it possible we are allowed to paste a screen shot > of our ontology or something else in this group like we do in Protege > group? I think it's not possible by the mailing list system - but I'm not an admin. You could add links that refer image upload services - as you should know. > > ___________________________ > > > > > <!-- http://xmlns.com/foaf/0.1/depiction#Q1 --> > > <owl:NamedIndividual rdf:about="http://xmlns.com/foaf/0.1/depiction#Q1";> > <rdfs:label>What is the capital city of Germany? > </rdfs:label> > </owl:NamedIndividual> > > > > <!-- http://xmlns.com/foaf/0.1/depiction#Q2 --> > > <owl:NamedIndividual rdf:about="http://xmlns.com/foaf/0.1/depiction#Q2";> > <rdfs:label>What is the biggest city of Europe?</rdfs:label> > </owl:NamedIndividual> > > > > <!-- http://xmlns.com/foaf/0.1/depiction#Q3 --> > > <owl:NamedIndividual rdf:about="http://xmlns.com/foaf/0.1/depiction#Q3";> > <rdfs:label>What is capital city of Spain?</rdfs:label> > </owl:NamedIndividual> > > > > <!-- http://xmlns.com/foaf/0.1/depiction#Q4 --> > > <owl:NamedIndividual rdf:about="http://xmlns.com/foaf/0.1/depiction#Q4 > "/> > > > > <!-- http:dbpedia.org/resource#Berlin --> > > <owl:NamedIndividual rdf:about="http:dbpedia.org/resource#Berlin"> > <rdfs:comment>Berlin, Germany’s capital, dates to the 13th > century. Reminders of the city's turbulent 20th-century history > include its Holocaust memorial and the Berlin Wall's graffitied > remains. Divided during the Cold War, its 18th-century Brandenburg Gate has > become a symbol of reunification</rdfs:comment> > </owl:NamedIndividual> > > > > <!-- http:dbpedia.org/resource#London --> > > <owl:NamedIndividual rdf:about="http:dbpedia.org/resource#London"/> > > > > <!-- http:dbpedia.org/resource#Madrid --> > > <owl:NamedIndividual rdf:about="http:dbpedia.org/resource#Madrid"> > <rdfs:comment>Madrid, Spain's central capital, is a city of > elegant boulevards and expansive, manicured parks such as the Buen Retiro. > It’s renowned for its rich repositories of European art, including the > Prado Museum’s works by Goya, Velázquez and other Spanish > masters.</rdfs:comment> > </owl:NamedIndividual> > </rdf:RDF> > > > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon> > Virus-free. > www.avast.com > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link> > <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > > On Thu, Oct 19, 2017 at 11:37 AM, Lorenz Buehmann < > [email protected]> wrote: > >> This is one of the most confusing question I ever read here... >> >> What is in your ontology? Sample data please! (in Turtle or N-Triples >> syntax) >> >> More comments inline: >> >> >> On 18.10.2017 20:10, javed khan wrote: >>> Good day >>> >>> I want to ask is it possible we access Dbpedia resource with a variable >>> name. >> Have you tried it? >>> For example, we have ontology which include rdfs:comment about different >>> cities and cities name are in our ontology and store in x variable >>> >>> ?x rdfs:comment ?y //This query works for me >> It works locally on your ontology - this is not a surprise as long as >> the query matches some data. >>> Now we want to directly access Dbpedia server (not using ontologiy) for >>> these cities and this time we want to access rdfs:abstract, so can we use >> There is no property rdfs:abstract in the RDFS vocabulary. Dbpedia has >> its own ontology, a property that you might mean is >> http://dbpedia.org/ontology/abstract >>> ?x rdfs:abstract ?sbstract >> Typo in variable name... >>> If not , how can we access then rdfs:abstract of different cities stored >> in >>> x >> Again, why can't you try it out? Is somebody/something preventing you >> from sending a SPARQL query to the DBpedia SPARQL endpoint? >> The expression "cities stored in x" doesn't make sense - or what is x >> for you? the dataset? >> >> If you have cities in your ontology, then you have to use those URIs as >> binding for variable ?x - and this only works if the URIs are the same. >> But again, we don't know your data. Alternative would be to match on the >> city name, but this is indeed bad practice as city names are ambiguous >> >>
